Delia does not display all the full-blown schizophrenia symptoms any more. Occasionally, a shadow of a symptom appears. She is a bit withdrawn and not entirely clear all the time, but she can marginally function in the world. This is an example of schizophrenia.

This is an example of Undifferentiated schizophrenia.

Explanation:

Schizophrenia as a mental illness (disorder) has been studied by various researchers inorder to know how to resolve the illness. During the study, it was known to be classified into four different types according to which symptoms the patients dispays.

In the case of Delia, she being withdrawn and not entirely clear all the time (vague feeling), shows an example of class of schizophrenia known as Undifferentiated Schizophrenia

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answer; negative punishment;